Sugar-cane mill.



H. W. AITKEN.

APPLICATI H. W. AITKEN.

SUGAR CANE MILL. APPLICATION FILED MR.l6, 1315.

May 23, 1916. 2 SHEETS-SHEET 2.

Patented W W M NT @ECE EUGI-I WALLAGE AITKEN, OF GLASGOW, SCQTLAND.

SUGrAR-CANE MILLE.

Specifieation of Letters lacent.

Patented May 23, 1916.

Application filed March 16, 1915. Serial No. 14,674.

T0 aZZ w/wm z't may conce7n Be it known that I, HUGH WALLACE AII- KEN, a subjeot of the King of Great Bntam anc1 Ire1and, resdng at R1ehmond Cham-.

bere, 1 17 Ba'uh street, Glasgow, Scotland,

have nvented certan neW and usefu1 Improvements 111 Sugar-Cane Mi1ls; and I 010 hereby -dec1are the follow1ng to be a f u1l, c1ear, and exaot descrption of the 1nvenon, such as Wi11 enab1e others sl cllec1 m the art to Whch it appertans to make and use the same, reference beng had to the accompany- 111g drawngs, and to letters or figures of reference marked thereon, which form a part of ths specification. I

My invention re1ates 130 sugar cane 111111s of the usua1 threeroller type. In such m 11s t s usua1 to provide means fo1 ac1ju st1ng t11e bearings of the sc1e 1011e1s in a horlz0n tal c1recton. Alternatively, however,means have been provded, or p roposed, for adjustlng t11e sc1e ro11er beanngs 111 a yert1 ca1 direction, or in a definite oblique d1reet1on (e. g., in a line joning che axes of t he top anc1 sc1e rollers) insceac1 of in a hor1zontal direotion. It is, in my opinon, of immense ac1vantage in a t111ee ro11er sugar cane 111111 130 be able to ac1just the sic1e 1011ers with respeot '00 the c1umbturner wthout a1terng the clearances between the top rolle1 andthe sde ro1lers, and to be able to adjust these clearances (between top 1o11e1 and side rollers) without affecting che re1ationshp betWeen the sic1e rollers and the c1umbtupner.

In my opinon t is only possble to obtain 4 these efiects and to derive the maxima of the ac1vantages obtainable from adjustment of the sc1e rollers by provding means fo1 adjusting che positions of the bearings of these ro11ers in 13W0 c1irectons approximately at right angles to each ouher, e. g., in a horzonta1 c1irecton end in a vertica1 d1ection.

My inventon-whch W111 be described in the following speeificaton and more par-- tieulary defined in the annexec1 clams-has for its object the' securing of these advantages.

The accompanyng drawngs Wi11 serve to illustrate my inventon.

Figure 1 is an elevaton partly in secton-of a 111111 heac1stock showng the means for ac1justing one of the sic1e ro1ler bearngs accorc1ing to my nventon. Fig. 2 s an end elevaton of Fig. 1. y

In Fgs. 1 and 2, a s the mil1 heac1stock, Z1, Z), I), indicate the three rollers, 0 s the journal of the sc1e ro11er at the admisson side of the 111111, d is the bearing for ths j ournal, 6 is the cap Whch ho1ds in the bearng, and f, f are the bo1ts which secure ths cap. The bottom of the recess in the heac1- stock Which reeeives the bearng is provided Wuh a11 nolined surface 9 and, engagng wth ths nclinec1 surface, is a wedge block 71 on Which the bearng rests. Ths wedge block can be pushed in by means of pnching screws 7a Which work in nuts m whieh are recessec1 into the cap.

0 s a large pinching screw Which works in a nut 29 recessec1 nto the cap and is adapted to act on the plate or bo1ster block g plaeec1 behnd the bearng. By means of this large pinehng serew the bearing can be pushed forward or inward. The platee s, t are of hard steel and are 1et into the b1ock q and Wedge 72, for the purpose of receiving the pressure of the pinehing screws. The bearng can be adjusted verteal1y by means of the wedge k; t can be ac1justed horizontally by n1eans of the pnchng sorew 0 and it can be adjusted in any other directon by the jont acton of the Wec1ge 71 and pinch- 111g screW o. The bearing can thus be adjustec1 in any c1esred directon, and, Within certain limts, to any c1esred extent.

It Will be obvous that the wedge could be arranged in any one of four diferent ways. F01 exan1p1e, it could be arranged (1) W11211 the upper surface horizontal, the 1oWer surface inclined, and the larger end at the outsde (as in Fig. 1); (2) Wth the upper surface horizontal, the lower surface nclned, and the larger end at the inside (as in Fig. 3); (3) Wbh the upper su1face inc1nec1 (the bush beng then formed With an inclnec1 lovver surface), the bottom surface horizontal (the headstock being then formed with a horzontal surface to receive the Wedge), and the larger end at the outsde; (41) same as 8 but with the larger end at the inside.

By means of my nventon t s possible to adjust the sc1e ro11er at the n1et sic1e of the 111111 for wear of the dumbturner wthout altering the 1101111a1 space or gap between ths r011e1 and the top ro1ler. It s a1so possible to adjustanc1 maintan che back 01 the dumbturner to be at the required distance from the megasse ro1ler (that is the ro11er at the out1et side of the 111111). This point s of n1portance, especially in the last mi11s of a seres, as too much space allows megasse to fall through, end too little space allows inadeguate area for the escape of j uce.

I hzwe deemed t unnecessary to illustrate 01 descrbe in greater detail che locaton and funetion of the dumbturner, as ths will be V familiar to those skllecl in the art.

It s net necessary that the two drections 0' adjustment should be exactly horizontal end exactly vertical respectively; end, in the case where the oblique side of the wedge s next the bearing, an exactly horizontal movement Wll not be obtaned. Neither is it necessary that the two directions of adjustment should be exaet1y at rght angles to each other, although an approximaton to a rght angle s advantageous, as, otherwse, adjustment by the adjusting device may be partly counteracted by adjustment by the other adjustng device.

Although it is generally preferzmble to provide for adjustng the bearngs of both sde rollers as above described, my invention might be appliecl to the bearings of one sde roller only.

' VVhat I claim as new and desre to secure by Letters Patent s:

1. In a 111111 adapted for the crushing of sugar cane, a headstock, a bearingfor che journal of a sde crushing roller, a recess in the side ofseid headstock adapted to contain sad bearng, a wedg'e blockadapted to slide on the bottom of sad recess and to support said bearng, a lower pinch screw adjustably supporbed for actuatng sad wedge block, a bolster block in contact with a vertcal side of sad baring, an upper pinch.

screw adjustably supported and bearing on said bolster block, sad upper serew beng adapted to effect a lateral adjstmnt f' said bearng and said lower screw and wedge block effecting an up and down adjustment of sad bearing. 7 7

2. In a mi11 adapted for the crushing -of sugar cane, a top roller, two side rollers, bearngs for the journals of said sde rollers, 21 cap for sad bearings, a headstoek havng un nclined surfaee g under'one of said side 1'011e1 journals, sad cap beng secured ton upper pnch screw mounted abwe said Weclge block, a"nut p located in a recess in szud cap through WhlCh nut sa1d upper screw passes, and a bolster block ntermedate said bearng and the end of said upper pinch screw, sad bolster block being supported upon said wedgeblock, whereby said bearng;

is cepable of lateral end vertcal adjustments. 7 7

In testmony whereof I ha-ve signed my 1mme to this specification in the presence of two subscribng wt'nesses.

HUGH WVALLACE AITKEN. W itnesses: 7

ROBERT IOLMES, J ENNY RANKIN.

Copie: of this patcnt may be obtaned for five cents cach, by addressing the "Commissioner o! Patenfs Washington, D. G. 

